BuildYourCNC - HIWIN Spec Linear Guide Flange Blocks

HIWIN guide block shown on a HIWIN linear rail

HIWIN Spec Linear Guide Block drawing and dimensions for 20 mm rail

HIWIN Spec Linear Guide Flange Blocks

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HIWIN Linear Guide Block

$45

Introduction:

These Hiwin spec linear guide blocks are interchangeable with Hiwin manufactured rail blocks.

Description:

.HIWIN Spec Linear Guide Blocks. Shipped from the USA. Fast shipping and quick delivery. Warranty and Support available.

These are the carriage blocks that you will need in order to properly secure your machine to the HIWIN rails.

This guide block moves along the rail with minimal deflection in either direction. The general size specification is 20mm. The guide block contains a plastic insert that should not be removed until it is placed on the rail.

It will also come with a grease nipple that can be installed on either side of the block. You can use a 5/32” hex wrench to install.

Mounting dimensions: 40mm and 53mm. The overall dimensions are 75.5mm x 63mm. The mounting holes on the block are threaded for M6 screws.

To insert the block onto the rail you want to make sure the sharp points of the rail are located facing up. There are ball bearings inside the block which is why the plastic piece remains inside to hold the bearings in place.

Use the grease nipple to grease the rail before movement.

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Related Tutorials

Step 1 - Linear Slide Bearings
This tutorial is dated, if you are considering a CNC for your personal use, we would highly recommend purchasing a kit that is very stable from our wide range of machines available. If you are looking for great linear slide bearings, see here. Through much of my research on homemade CNC machines, I found that the mechanism to provide linear sliding is simply the use of an angle ("L" shaped piece of metal), bolts or screws (5/16" at 3/4" in length), nuts (5/16") and standard skate bearings (I use ABEC7/608Z). The design is actually very efficient and clutter free. When I say clutter free, I mean that the exhaust of sawdust that the CNC will produce will not clog up these bearings. Collar bearings, or bushing bearings I believe will have the tendency to receive material within the bearing housing creating a binding effect. If you are wondering what a bearing bushing is, imagine a cylindrical tube with little balls housed on the inside surface of the tube. The skate bearing method is like creating a new kind of hybrid inline skates and those skates you used in the 80's with the four wheels (coming back into style, why?!?).

Pipe CNC Step 1: Linear Slide Mechanism and Concept
November 22, 2007 Happy thanksgiving for those who live in the United States. This is my first post in the Research and Development section of this website. You are probably wondering why I am adding the pipe CNC machine in such an illusive section. I want visitors of this website to know that this machine is a work in progress and all of the bugs and concepts are not fully known yet. Anyway, this enables me to share some of the ideas that run through my head.

Step 5 - Y-Axis Bearing and Rail Support
This tutorial is dated, if you are considering a CNC for your personal use, we would highly recommend purchasing a kit that is very stable from our wide range of machines available. We are finally to the y-axis. In this video you will see how I built the y-axis linear bearing support and the rail support. First the rail support is similar to the rail support for the z-axis, but wider. This width carries much of the load and the width determines the z-axis length of travel. If you want more z-axis travel, pick a wider y-axis rail support width. In this case, the width to which I'm referring is the short side of the piece. That is... if you made the z-axis travel longer than the length of the y-axis rail, then the width would be more than the length. Did I confuse you yet? I think I confused myself. Well...let's get on with the build.

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